Been considering this combo for woods carry. 10 rounds functioned fine and felt "warm." Barrel leaded from chamber about a third of the way down. Enormous glock smileys. I won't reload this brass. Would you be reasonably confident this ammo is safe to run through the gun, at least once?
I have read what the other folks have said on previous posts.
I have had, modified, and built from stripped frames 1911's from .22 LR, 9mm Para, .38 Super, and .45 ACP over the years. Just my $.02 worth:
IMO, the 1911 .45 ACP as designed by JMB was for a subsonic hardball round firing a large projectile. If one wants to fire anything heavier, faster, or HP bullets, one needs to throat the barrel (Jerry Kuhnhausen). Therein is the rub. The throated barrel needs to support the bottom of the cartridge case so as not to cause the bad case bulges you show.
If one wishes to do .45 +P cartridges (to me an oxymoron), one must think about replacing parts to accommodate .45 Super or .460 Rowland (specialized barrel, et al). Just boosting powder charges with the .45 ACP is going to cause problems which your cases exemplify.
If one wants a high velocity hard hitting 1911 type pistol, one should really look at this:
http://www.coonaninc.com/pistol-showroom
I am too old to spend that kind of money, but 20 years ago I would have done it if not for all other projects I had then. I regret not doing it. To me, that is the ultimate 1911 type pistol. Very heavy for a 1911 type, all steel, long dust cover, and the 5" barrel model.
http://www.coonaninc.com/product/357-magnum-classic/
If someone wants to lay $1500 on me I would go for it and I would spend the extra change.
Any takers?
Jim